fix meta data

Author: mamtawardhani

content/javascript/concepts/strings/terms/lastIndexOf/lastIndexOf.md

@@ -1,17 +1,16 @@
+---
 Title: '.lastIndexOf()'
 Description: 'Returns the index of the last occurrence of a specified substring within a string, or -1 if the substring is not found.'
 Subjects:
-
 - 'Computer Science'
 - 'Web Development'
-  Tags:
+Tags:
 - 'Strings'
 - 'Methods'
 - 'JavaScript'
-  CatalogContent:
+CatalogContent:
 - 'learn-javascript'
 - 'paths/web-development'
-
 ---
 
 The **`.lastIndexOf()`** method in JavaScript returns the position of the last occurrence of a specified substring within a [string](https://www.codecademy.com/resources/docs/javascript/strings). If the substring is not found, it returns `-1`. It performs a case-sensitive search and can take an optional starting position from which to begin the search backwards.